Finding the Fourth Proportional to 2,157.34, 3,235.31 and 696.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157.34 : 3,235.31 = 696.15 : x
2. Step 2: Convert to fraction form
   2,157.34/3,235.31 = 696.15/x
3. Step 3: Cross multiply
   2,157.34x = 3,235.31 × 696.15
4. Step 4: Simplify right side
   2,157.34x = 2,252,244.88
5. Step 5: Solve for x
   x = 2,252,244.88/2,157.34
6. Step 6: Final answer
   x = 1,043.99